Home / 742,438.34-1,113,620.57-406,135.86

Finding the Fourth Proportional to 742,438.34, 1,113,620.57 and 406,135.86

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Solution

The fourth proportional to 742,438.34, 1,113,620.57 and 406,135.86 is: 609,183.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,438.34 : 1,113,620.57 = 406,135.86 : x
  2. Step 2: Convert to fraction form
    742,438.34/1,113,620.57 = 406,135.86/x
  3. Step 3: Cross multiply
    742,438.34x = 1,113,620.57 × 406,135.86
  4. Step 4: Simplify right side
    742,438.34x = 452,281,243,226.89
  5. Step 5: Solve for x
    x = 452,281,243,226.89/742,438.34
  6. Step 6: Final answer
    x = 609,183.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.